HD 92063 is a single
star in the southern
constellation of
Carina . It has the
Bayer designation t Carinae , while
HD 92063 is the star's identifier from the
Henry Draper Catalogue . This is a suspected
variable star and is visible to the naked eye with an
apparent visual magnitude of 5.08. The star is located at a distance of approximately 246
light years from the
Sun based on
parallax , but is drifting closer with a
radial velocity of −10 km/s. Although it appears at the edge of the
Carina Nebula , it is much closer than the nebula. It is also not considered a member of the nearby Alessi 5
open cluster of stars.
This is an aging K-type giant star with a stellar classification of K1III, having exhausted the supply of hydrogen at its core then cooled and expanded off the main sequence . At present it has 14 times the radius of the Sun . The star is radiating 72 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,520 K.
References
^ Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties" . Astronomy & Astrophysics 616 . A1. arXiv :1804.09365 Bibcode :2018A&A...616A...1G doi :10.1051/0004-6361/201833051 Gaia DR2 record for this source at VizieR .^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters , 38 (5): 331, arXiv :1108.4971 Bibcode :2012AstL...38..331A , doi :10.1134/S1063773712050015 , S2CID 119257644 . ^ Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars , vol. 1, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode :1975mcts.book.....H . ^ Samus', N. N; Kazarovets, E. V; Durlevich, O. V; Kireeva, N. N; Pastukhova, E. N (2017), "General catalogue of variable stars: Version GCVS 5.1", Astronomy Reports , 61 (1): 80, Bibcode :2017ARep...61...80S , doi :10.1134/S1063772917010085 , S2CID 125853869 . ^ Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; De Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (2019), "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18", Astronomy and Astrophysics , 628 : A94, arXiv :1904.11302 Bibcode :2019A&A...628A..94A , doi :10.1051/0004-6361/201935765 , S2CID 131780028 . ^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014), "A catalog of rotational and radial velocities for evolved stars", Astronomy & Astrophysics , 561 : A126, arXiv :1312.3474 Bibcode :2014A&A...561A.126D , doi :10.1051/0004-6361/201220762 , S2CID 54046583 . ^ "HD 92063" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2018-07-12 .^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society , 389 (2): 869, arXiv :0806.2878 Bibcode :2008MNRAS.389..869E , doi :10.1111/j.1365-2966.2008.13596.x S2CID 14878976 . ^ Cantat-Gaudin, T.; et al. (July 2018), "Characterising open clusters in the solar neighbourhood with the Tycho-Gaia Astrometric Solution", Astronomy & Astrophysics , 615 : 15, arXiv :1801.10042 Bibcode :2018A&A...615A..49C , doi :10.1051/0004-6361/201731251 , S2CID 56324345 , A49.
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